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Isolated right atrial compression as a late sequela of aortic valve replacement
B A Grishkin1, P W Catalano, M A Watts
1Augusta Thoracic & Cardiovascular Surgical Associates, GA 30904.
Texas Heart Institute Journal
|January 1, 1994
Summary
Aortic bleeding after valve replacement caused a pseudoaneurysm, leading to right atrial compression and cardiac tamponade. Echocardiography initially misidentified the hematoma as an intra-atrial thrombus.
Area of Science:
- Cardiovascular Surgery
- Cardiac Imaging
- Pathology
Background:
- Aortic valve replacement is a common procedure for aortic valve disease.
- Complications, though rare, can occur months or years post-surgery.
- Understanding delayed complications is crucial for patient management.
Observation:
- A patient presented with symptoms of right atrial compression 31 months post-aortic valve replacement.
- Imaging revealed an aortic pseudoaneurysm resulting from contained bleeding.
- This pseudoaneurysm caused localized cardiac tamponade compressing the right atrium.
Findings:
- The pseudoaneurysm mimicked an intra-atrial mass on initial transthoracic echocardiography.
- Distinguishing the extracardiac hematoma from an intra-atrial thrombus proved challenging.
- This diagnostic ambiguity temporarily misled clinical assessment.
Implications:
- Delayed pseudoaneurysm formation is a potential, albeit uncommon, complication after aortic valve surgery.
- Accurate differentiation between extracardiac collections and intracardiac masses is vital for timely intervention.
- This case highlights the importance of considering iatrogenic pseudoaneurysms in the differential diagnosis of cardiac masses post-surgery.